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參數(shù)資料
| 型號： | LTC3538EDCB#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.8 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 2 X 3 MM, LEAD FREE, PLASTIC, DFN-8 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 206K |
| 代理商： | LTC3538EDCB#PBF |
LTC3538
6
3538fb
PIN FUNCTIONS
FB (Pin 1): Feedback Input to Error Amplifer. Connect
resistive divider tap from VOUT to this pin to set the output
voltage. The output voltage can be adjusted from 1.8V to
5.25V. Referring to the Block Diagram the output voltage
is given by:
VOUT = 1V (1 + R1/R2)
VC(Pin 2): Error Amplier Output. A frequency compensa-
tion network should be connected between this pin and FB
to compensate the loop. See Closing the Feedback Loop
section of the datasheet for further information. Pulling
VC below 0.25V disables the LTC3538.
GND (Pin 3): Ground.
BURST (Pin 4): Burst Mode Select Input.
BURST = Low for xed frequency PWM operation
BURST = High for Burst Mode operation
VOUT (Pin 5): Power Supply Output. This pin should be
connected to a low ESR output capacitor. The capacitor
should be placed as close to the IC as possible and should
have a short return to GND.
SW2 (Pin 6): Switch Pin where the Internal Switches
C and D are Connected. An optional Schottky diode can
be connected from SW2 to VOUT for a moderate efciency
improvement. Keep the trace length as short as possible
to minimize EMI.
SW1 (Pin 7): Switch Pin where the Internal Switches A and
B are Connected. Connect an inductor from SW1 to SW2.
An optional Schottky diode can be connected from SW1 to
ground for a moderate efciency improvement. Keep the
trace length as short as possible to minimize EMI.
VIN (Pin 8): Input Supply. This input provides power to
the IC and also supplies current to switch A. A ceramic
bypass capacitor (4.7μF or larger) is recommended as
close to VIN and GND as possible.
Exposed Pad (Pin 9): GND. The exposed pad must be
electrically connected to the board ground for proper
electrical and thermal performance.
相關(guān)PDF資料 |
PDF描述 |
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| LTC3538EDCB | 0.8 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC3538EDCB#TR | 0.8 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC3541EDD-2 | 1.25 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO10 |
| LTC3541EDD-2#TR | 1.25 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO10 |
| LTC3541EDD-3 | 1.25 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO10 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3538EDCB-TR | 制造商:LINER 制造商全稱:Linear Technology 功能描述:800mA Synchronous Buck-Boost DC/DC Converter |
| LTC3538EDCB-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:800mA Synchronous Buck-Boost DC/DC Converter |
| LTC3539 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up |
| LTC3539-2 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up |
| LTC3539EDCB#PBF | 制造商:Linear Technology 功能描述: 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, Cut Tape 2A, 1MHz Synchronous Step-Up DC/DC Converter in 2m |
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